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Raynie, DE

1989

A Method for the Preparation of Binary Mobile Phase Mixtures for Capillary Supercritical Fluid Chromatography

Raynie, D.E.; Fields, S.M.; Djordevic, N.M.; Markides, K.E. and Lee, M.L.
J. High Resoln. Chromatogr., 12, 51, 1989. Funded by Gas Research Institute.

Here, we describe a simple, inexpensive method for the preparation of mixed mobile phase (especially gas + liquid mixtures) for SFC. This method does not require cryogenic freezing of the organic modifier, and vacuum is needed only for initial evacuation of the closed system. Simple calculations allow determination of the exact concentrations of mixtures transferred to the SFC pumping system, accounting for loss of CO2 (or other gaseous primary fluid) during the transfer process.